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Message-ID: <ce283de9-7412-472e-f72c-cb6a35ede426@suse.de>
Date:   Tue, 1 Feb 2022 11:08:23 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Simon Ser <contact@...rsion.fr>
Cc:     Linux PWM List <linux-pwm@...r.kernel.org>,
        Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
        Noralf Trønnes <noralf@...nnes.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Javier Martinez Canillas <javierm@...hat.com>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Mark Brown <broonie@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Maxime Ripard <maxime@...no.tech>,
        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Lee Jones <lee.jones@...aro.org>
Subject: Re: [PATCH 0/4] drm/tiny: Add driver for Solomon SSD1307 OLED
 displays

Hi

Am 01.02.22 um 09:36 schrieb Geert Uytterhoeven:
> Hi Simon,
> 
> On Tue, Feb 1, 2022 at 9:34 AM Simon Ser <contact@...rsion.fr> wrote:
>> On Tuesday, February 1st, 2022 at 09:26, Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>>> What's the story with the Rn formats?
>>>
>>> The comments say "n bpp Red", while this is a monochrome (even
>>> inverted) display?
>>
>> I don't think the color matters that much. "Red" was picked just because it was
>> an arbitrary color, to make the difference with e.g. C8. Or am I mistaken?
> 
> I'd expect 8-bit grayscale to be Y8 instead.

I like this naming, but DRM_FORMAT_R8 is uapi already. :/ If anything, 
we could add Yn formats in addition to existing Rn formats.

Best regards
Thomas

> 
> Gr{oetje,eeting}s,
> 
>                          Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                  -- Linus Torvalds

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev

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